Pioneers, 1642-1842 -- Hardy mountain plants, 1842-1865 -- Good tidings, strenuous life, 1865-1903 -- Brotherhood of the rope, 1900-1946 : part I -- Brotherhood of the rope, 1900-1946 : part II -- Rucksack revolution, 1945-1963 -- Epilogue: 1964-2015.
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